Links between cancerous toxin and cannabis extract

Researchers discovered benzene and other potentially cancer-causing chemicals in the vapor produced by butane hash oil, a cannabis extract.

This raises health concerns about dabbing, or vaporizing hash oil - a practice that is growing in popularity, especially in states that have legalized medical or recreational marijuana.

Dabbing is placing of a small amount of cannabis extract-a dab on a heated surface and inhaling the produced vapor. The practice has raised concerns because it produces extremely high levels of cannabinoids -the active ingredients in marijuana.

The process of making hash oil also is dangerous because it uses highly flammable and potentially explosive butane as a solvent to extract active ingredients from marijuana leaves and flowers. Dabbinge- a form of vaporization, may produce high amounts of toxins, researchers analyzed the chemical profile of terpenes - the fragrant oils in marijuana and other plants - by vaporizing them in much the same way as a user would vaporize hash oil.

Terpenes are used in e-cigarette liquids, toxic chemicals in e-cigarette vapor when the devices were used at high temperature is very dangerous. 

The dabbing experiments produced benzene - a carcinogen at levels at higher level than the ambient air, It also produced high levels of methacrolein, a chemical similar to acrolein, also a carcinogen.
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